3 files changed, 5 insertions, 6 deletions
diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs
index b30b9b60e30..803b645c8f7 100644
--- a/compiler/rustc_middle/src/lib.rs
+++ b/compiler/rustc_middle/src/lib.rs
@@ -27,9 +27,8 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
+#![allow(rustc::direct_use_of_rustc_type_ir)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(not(bootstrap), allow(rustc::direct_use_of_rustc_type_ir))]
-#![cfg_attr(not(bootstrap), feature(sized_hierarchy))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(allocator_api)]
@@ -55,6 +54,7 @@
 #![feature(round_char_boundary)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
+#![feature(sized_hierarchy)]
 #![feature(try_blocks)]
 #![feature(try_trait_v2)]
 #![feature(try_trait_v2_yeet)]
diff --git a/compiler/rustc_middle/src/ty/codec.rs b/compiler/rustc_middle/src/ty/codec.rs
index 3d7965f6cfe..335b889b14d 100644
--- a/compiler/rustc_middle/src/ty/codec.rs
+++ b/compiler/rustc_middle/src/ty/codec.rs
@@ -8,12 +8,12 @@
 
 use std::hash::Hash;
 use std::intrinsics;
-use std::marker::DiscriminantKind;
+use std::marker::{DiscriminantKind, PointeeSized};
 
 use rustc_abi::{FieldIdx, VariantIdx};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def_id::LocalDefId;
-use rustc_serialize::{Decodable, Encodable, PointeeSized};
+use rustc_serialize::{Decodable, Encodable};
 use rustc_span::source_map::Spanned;
 use rustc_span::{Span, SpanDecoder, SpanEncoder};
 
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
index 72810491214..f5c55f96875 100644
--- a/compiler/rustc_middle/src/ty/context.rs
+++ b/compiler/rustc_middle/src/ty/context.rs
@@ -10,7 +10,7 @@ use std::cmp::Ordering;
 use std::env::VarError;
 use std::ffi::OsStr;
 use std::hash::{Hash, Hasher};
-use std::marker::PhantomData;
+use std::marker::{PhantomData, PointeeSized};
 use std::ops::{Bound, Deref};
 use std::sync::{Arc, OnceLock};
 use std::{fmt, iter, mem};
@@ -44,7 +44,6 @@ use rustc_macros::{HashStable, TyDecodable, TyEncodable};
 use rustc_query_system::cache::WithDepNode;
 use rustc_query_system::dep_graph::DepNodeIndex;
 use rustc_query_system::ich::StableHashingContext;
-use rustc_serialize::PointeeSized;
 use rustc_serialize::opaque::{FileEncodeResult, FileEncoder};
 use rustc_session::config::CrateType;
 use rustc_session::cstore::{CrateStoreDyn, Untracked};